Re: [foxboro] foxboro Digest V3 #298

In a message dated 10/8/03 2:31:03 AM Central Daylight Time, 
foxboro@xxxxxxxxxxxxx writes:
Hi. I'v a Fox I/A AW70x running under Windows NT4.0
and I don't know why i have a very low cycle speed.
In other words when i move the MEAS parameter its take
about 63 seconds to update PNT parameter, ussing any
I/O block
If somebody knows why this is happening, please replay
to me as soon as possible. Thanks!!!!
We had a similar problem with I/A 6.1 on a Sun platform, so I don't know if 
the solution will apply, but we found that having AIN blocks with filtering 
turned on, but with the filter time set to 0.0 was causing a similar slowdown.  
The answer was to either turn off filtering altogether (on a block by block 
basis), or to give a non-zero filter time to blocks with filtering turned on.


Tim - I agree with the others on using an OSV of 10-15%.  This is especially 
true on level control loops.


Rick Guercio
RG Consulting


 
 
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